I am a computer scientist interested in cryptography and security. BS from Iowa State University &rarrw; PhD from University of Illinois &rarrw; Assistant Prof at University of Montana (2009-2013) &rarrw; Assistant Prof at Oregon State (2013-present). I am the only faculty member at Oregon State University whose name contains the substring "OSU".

Paper on post-quantum signatures accepted to CCS 2018, and paper on UC hybrid protocols accepted to TCC 2018. Also find me featured in this Oregonion article where I offer some skepticism about bunk cryptanalysis.

2PC Course

In Summer 2018 I was an invited lecturer at the crypt@b-it summer school in Bonn, Germany. I delivered a week-long course on efficient secure computation techniques. The focus was on things that I actually know about: 2PC based on garbled circuits, and PSI.

My main research focus is on cryptographic protocols for secure computation. These tools allow parties to perform computations on private data, so that they learn the outcome of the computation but nothing else. I am interested in both theoretical and practical aspects of secure computation techniques.

More specifically, my recent research has focused on:

Private set intersection: Two parties each hold a set of items, and wish to learn which items they have in common, without revealing anything else about their sets. This special case of secure computation has many real-world applications.

Garbled circuits: Garbled circuits are one of the few ways to achieve general-purpose secure computation protocols with just a few rounds of communication. I'm interested in making this core technique more efficient.

Secure computation against malicious adversaries: My group has developed new techniques for hardening secure computation protocols against malicious participants, who may deviate arbitrarily from the protocol.

My research is supported by the NSF, including an NSF CAREER award, and faculty research awards from Google and Visa Research.

Publications

More bibliographic information is also available on my Google scholar page and DBLP page. For most publications I include a link to a free version of the article; however, some papers are behind paywalls. Send me email if you would like a copy of paywalled publications.